It was narrated from Abu Sa’eed Al-Khudri that the Messenger of Allah ﷺ passed by a boy who was skinning a sheep. The Messenger of Allah ﷺ said to him:
“Step aside and I will show you how.” The Messenger of Allah ﷺ put his hand between the skin and the flesh, and thrust his arm in until it disappeared up to the armpit, and said: “O boy, this is how you skin it.” Then he went and led the people in prayer and did not perform Wudu’.

حَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا مَرْوَانُ بْنُ مُعَاوِيَةَ، حَدَّثَنَا هِلاَلُ بْنُ مَيْمُونٍ الْجُهَنِيُّ، عَنْ عَطَاءِ بْنِ يَزِيدَ اللَّيْثِيِّ، - قَالَ عَطَاءٌ لاَ أَعْلَمُهُ إِلاَّ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ - أَنَّ رَسُولَ اللَّهِ ﷺ مَرَّ بِغُلاَمٍ يَسْلُخُ شَاةً فَقَالَ لَهُ رَسُولُ اللَّهِ ﷺ " تَنَحَّ حَتَّى أُرِيَكَ " . فَأَدْخَلَ رَسُولُ اللَّهِ ﷺ يَدَهُ بَيْنَ الْجِلْدِ وَاللَّحْمِ فَدَحَسَ بِهَا حَتَّى تَوَارَتْ إِلَى الإِبْطِ وَقَالَ " يَا غُلاَمُ هَكَذَا فَاسْلُخْ " . ثُمَّ مَضَى وَصَلَّى لِلنَّاسِ وَلَمْ يَتَوَضَّأْ .